February 23, 1850

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Features

Vermont Valley Railroad

Phenomenon in Oregon

Emanuel Parker's Improvement on Water Wheels—Fig 1

Alabama and Tennessee Railroad

Relief to Travellers

Railroad Movement in St. Louis

The Real and Ideal

Counterfeit Detector

Ceitiberian Relics

The Pulley and the Crank

Paine's Light

Cotton Grown in spain

The Hand-Loom Weaver and the Power Loom

Newly Discovered Properties of Heat in Combination with Steam

Chinese Printing

The Atmosphere

Alarm and Thief Detector

Sign Letters of Earthenware

Improvement in Communicating Power to the Throstle Spinning Frame

To Dye Black Satinet, Muslin de Laine, and other Goods which have a Woollen Weft and Cotton Warp

Safety Apparatus for Steam Boillers

A New Propeller

The Cuban Plow

Newly Constructed Oven

Great Steamboat—Scientific Challenge

A Controversy to be Settled

The Brittania Bridge

Wood's Patent Shingle and Stave Machine

Improvements in Rail Roads in Virginia—Governor's Message

The Iron and Zinc of New Jersey

Explosions of Steam Boilers

Cheap Postage

Receipts for Washing

Inventors and Patent Agents

List of Patent Claims

Notice

Tanning—Practical Remarks

To Inventors and Mechanics

History of Propellers and Steam Navigation

Coal Gas Charcoal

The Telescope

Departments

From the Editor

To Correspondents

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